Place brisket in a large piece of foil.,Sprinkle generously with liquid smoke, celery, onion and garlic salt. Wrap well and place in a baking pan.,Bake at 275° for 1 hour for each pound. Drain juice from meat and chill completely (overnight works best). Slice brisket very thin.,Place in baking dish. Cover with sauce (hickory smoked brisket sauce) and bake 1 hour at 350°.,Serve with buns.,Great for picnics, teen parties, helping a friend in need.,______